根据二聚体系表观浓度与吸光度的相关规律,对二聚常数的方程组求解法进行了改进,并应用改进后的方法计算了三磺化酞菁、四磺化酞菁钴的二聚常数,计算结果与实验值吻合. According to the correlation between the apparent concentration and the absorbency of dimeric system, the solution of the equation of diad constant is improved, and the dimeric constants of trisulfonated phthalocyanine and tetrasulfonated cobalt phthalocyanine are calculated by the improved method The calculated results are in good agreement with the experimental data.